Cool! I've been called out! 8D
Oh god >__> Ok when people usually think in the shipping fandom in the world of '3', it gets way out of hand... Your theories are acceptable for Ash/Dento/Iris, but... there' really no other connotation for '3' in shipping other than the detailed one... >_<
It's called fandom; it's not like Negai or CafeMocha are going to transpire anyway. Sure, you can argue "Negai has a better chance because it's not a gay 'ship (which is true)" but that's sugarcoating a lie. They have equal chance in canon, and that's 0.
Now I say this (and people will argue..or "debate" over this) because for all the big ships that have "hints" and "evidence", they have amounted to nothing, one-sided at best, delusional at worst, and they're allowed to support what they want, how they want, where they want. Any 'ship that's meant to be would happen by the end of the episode, the end of the movie (in terms of minor characters overall), or the end of that journey (because it's part of the plot!). Which hasn't happened involving Ash yet, and it won't suddenly begin with this group. That much is obvious.
So with that aside, if I want to throw around a threesome, I shouldn't be criticized, because most, of not all of you, are 'shipping equally unlikely 'ships. :B Just because yours has a chance in theory doesn't mean it stands up in reality. It's all fiction. You're supposed to enjoy fiction.
Now, the way Jorah worded it, that's perfectly fine! That's actually looking into the couple by who's in it and breaking it down from there...and not how many just happen to be included. =P So, bully on your part. Threesomes are /fun/ in fiction (it would certainly shut up Team Edward vs Team Jacob).